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Fastening device and method for fastening an element in a key-hole shaped cut-out of a wall

A technology of fixing devices and keyholes, which is applied in the direction of connecting components, thin plate connections, circuits, etc., can solve problems such as the inability to ensure the reliable execution of sensor functions, and achieve the effect of simple anti-twist protection function

Active Publication Date: 2011-06-22
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, during installation, the part twists in the keyhole when no corresponding twist stop is provided
Reliable functioning of the sensor cannot be ensured if the sensor is twisted during installation

Method used

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  • Fastening device and method for fastening an element in a key-hole shaped cut-out of a wall
  • Fastening device and method for fastening an element in a key-hole shaped cut-out of a wall
  • Fastening device and method for fastening an element in a key-hole shaped cut-out of a wall

Examples

Experimental program
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Embodiment Construction

[0031] It is an object of the invention, in particular, to ensure an extended protection against twisting when mounting components using the keyhole principle. Here, it is to be avoided that the part falls out partially after the insertion process of the mounting bolt into the keyhole. When falling out, it can happen that the part rotates about the screw axis of the fastening screw and can then no longer be tightened exactly. This danger is eliminated by the present invention.

[0032] exist figure 1 , a perspective view of an embodiment of the present invention is shown. The fixing element 100 comprises a support element 110, for example constituted by a support plate, which lies flat against the wall when the fixing device 100 is fixed in a keyhole-shaped cutout in a wall or bracket. The support element 110 should in this case cover the edge of the narrower part (hole) of the keyhole-shaped cutout, whereby not only the support element 110 can be supported on the wall, but...

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Abstract

The present invention relates to a fastening device (100) for fastening an element (140) in a key-hole shaped cut-out (500) of a wall (200). The fastening device (100) comprises a support element (110) that is adapted to sit against a front side of the wall (200) in the fastened state of the fastening device (100) and to cover at least part of an edge of a narrower opening (520) of the key-shaped cut-out (500). The fastening device (100) also comprises a locking element (120) that is adapted to reach through a broader opening (510) of the key-shaped cut-out (500) and to hold the fastening device (100) from a rear side of the wall (200) in the fastened state of the fastening device (100).

Description

technical field [0001] The invention relates to a fastening device according to claim 1 for fastening an element in a keyhole-shaped cutout in a wall and a method according to claim 11 for fastening a fastening device to a wall. Background technique [0002] Components, especially sensors such as those used in restraint systems, are attached to vehicles in various ways in the automotive industry. In addition to screwing onto nuts in the welded bodywork or by means of screws through holes in the bodywork into threaded bushings of components, the "keyhole principle" is used to secure the housing. Here, a bolt with self-locking nut, for example pre-installed in the housing, is inserted into the larger part of the keyhole-shaped hole in the vehicle body panel and then hung on the lower narrower part of the keyhole middle. The nut is then tightened and thereby clamps the part. [0003] Compared with the other two methods mentioned above, the keyhole principle has the following...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16B5/00
CPCF16B5/02F16B21/09Y10T29/49947F16B2200/71
Inventor D·瓦尔加B·亚当U·本克J·韦格纳
Owner ROBERT BOSCH GMBH
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